Brazing compound.



CHARLES E JOSHUA OLDHAM AND sons, or rrou.

HAMILTON, OF WINNIPEG,

BROOKLYN, NEW YORK, A

lVIAblITOBA, CANADA, ASSIGNOR' Tc CORPORA- BRAZING COMPOUND.

Specification of Letters Patent,

Patented March 26. 1907.

Application filed October 3, 1906. Serial No. 337,235.

I0 (1 7,7 whom it may concern: I Be it known that 1,,CI-IARLES E.I'IAMIL- TON, a subject ofthe King of Great Britain, residing atWinnipeg, in the Province of Manitoba and Dominion of Canada, haveinvented a new and useful Brazing Compound, of which the following is aspecifical tron.

My invention relates to an improved brazing compound especially designedfor use in the numuiacture of bzmd-szms,

lts object-is to provide for readil and eflfectivelf-uniting,.asbybrazing, wit the use of lmrd n 1et al, 't he ends of an object, as a'jiifl e e'by may be obtained a neat le and homogeneous weld, which U adesideratum for the abovesedpuiposc. oi the employment and amalgaeertainingredients, as hereinafter and pointed out by the claims. e disclosureof my invention em- .he l'ollowing ingredients or materials: (A)ehemicaltv-pure machine oil or grease," .txi'ommees, (fl oz.:) (Blferrous carbonate, 'lo'ur ounees, (4 oz.:) ((1) horax, (borate,) twelveounces, (12 oz.;) (1)) sodium carbon- 'ate, one ounce, (l oz.;) (ll)sal-ammoniac, halI-oimce, (TE-'07.. optional; (F) pota sium carbonate,one ounce, (1 oz.) For preparation these materials or ingredients,exclusiw of the oil at this time, are placed and mixed together in asuitable receptacle, as a mortar, addingthereto two ounces (2 oz.) ofwater. W hen thoroughly incorporated or compounded, the resultin mixtureis removed from the mortar and suitab y; spread for drying.

'rous carbonate, four ounces; ounces; sodium carbonate, one ounce, and

. rous carbonate,

After having' I been thoroughly dried said mixture is returnedto themortar, the oil in the quantity above noted then being; added andthoroughly mixed or. combined therewith. The mixture or compound is nowsuitable for effecting the brazing operation, with the use of silver orother soldering material, as solder, 45 s elter, &c. I am not abletoexplain the 0 emical reactions that take place between theseingredients; but the flux has the property of uniting the metals withoutdestroying the temper of the steel.

1. A brazing compound of the character described, comprising oil,ferrous carbonate, borax, sodium carbonate, and potassium carbonatecom'pou'nded in the proportions and 55 manner described.

2. A brazing compound ofthe character described, consisting of oil, twoounces; ferborax, twelve otassium carbonate, one ounce, all compoundedas set forth.

3. A brazing compound of the character described, consisting of oil, twoounces; fer- 1 four ounces; borax,'twelve ounces; sodium carbonate, oneounce; salammoniac, half-ounce, and potassium carbonate, one ounce, allcompounded as set forth. v

' In testimony whereof I afiix my signature 7 in presence, of twosubscribing witnesses.

, CHARLES E. HAMILTON.

Witnesses JAMES M. TAPLEY, "GERALD S. Roxmmen.

